Table 5: Showing sensitivity and specificity of various renal markers.

ParametersAUC (95% CI)SensitivitySpecificity+LR−LRPPVNPV

Cystatin-C0.99388.24%98.04%45.0
(6.4–314.17)
0.12
(0.06–0.25)
97.83%89.29%
Creatinine0.42362.75%27.45%0.86
(0.66–1.13)
1.36
(0.77–2.40)
46.38%42.42%
Uric acid0.81579.07%71.19%3.78
(2.02–7.05)
0.40
(0.27–0.61)
66.67%82.35%

There was a significant positive correlation between Cystatin-C level and uric acid (; value < 0.05). There was also a significant negative correlation between eGFR and serum Cystatin-C level (, ). The negative correlation implies that as the eGFR level decreases with the progression of kidney disease, there is a subsequent rise in serum Cystatin-C level.